Appending to a JQuery variable/object

Question

I need to append to a DOM object - but I don't know in advance which object that will be (depends what the user selects in the UI). So I must generate the id dynamically and then append - but I'm struggling to find a way to do this.

For example, to append to a table with an id of my-table-13 I'd like to do something like this:

var $Table = 'my-table-' + value;

$(Table)
    .append($("<tr>")
        .attr('id','my-row'));

I've tried variations of inserting brackets and #'s on the first line - but no success. Is this possible?

If your variable is $Table then the jQuery would start with $($Table), not $(Table). — j08691
– j08691, Commented Aug 9, 2013 at 16:42

Paolo Casciello · Accepted Answer · 2013-08-09 16:43:23Z

1

var table = '#my-table-' + value; // or '.my-table-'

and then

$(table).....

$Table is a valid variable name in javascript, so $Table and Table used in $(Table) are different. You were actually trying to use $(undefined)...

Using something like $($Table) works but it's considered bad syntax.

answered Aug 9, 2013 at 16:43

Paolo Casciello

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2 Comments

DrewG Over a year ago

if the table variable is the id make sure to add '#' to the selector as well. '#my-table-' + value

Locotes Over a year ago

Both answers show valid solutions which I'm grateful for - giving this the vote for the slightly greater detail.

tymeJV · Accepted Answer · 2013-08-09 16:44:27Z

0

You need a # to grab an ID, also reference $Table not Table

var $Table = 'my-table-' + value;

$("#" + $Table)
    .append($("<tr>")
        .attr('id','my-row'));

answered Aug 9, 2013 at 16:44

tymeJV

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